Video: Casoni Seamount Exploration - Dive Highlights In this dive highlight from September 22nd, watch as the Nautilus explores the Casoni Seamount in the Mediterranean Sea off the coast of Sicily, Italy. Expedition Submarine Volcanoes of the Aeolian Arc and Tyrrhenian Sea Related Content View video Video: Rare Views of Lost WWII Shipwreck HMAS Canberra View video Video: IJN Destroyer Teruzuki Discovered View video Video: Exploring WWII Shipwreck USS Northampton